Distortion Hi-Res audio


I’m using Audirvana to play 24/96 files onto a Raspberry Pi 3+ with HifiBerry Digi+ Pro. Everything is up to date. I send signal through a high quality coaxial cable to an Edifier S2000 Pro that contains an internal Burr-Brown chip supporting a 24-bit 216-kHz resolution.

Music is distorted when playing above 48 Khz (I need to downsample it in Audirvana for it to sound good). Any ideas on what the issue could be?